Brad Pitt and Angelina Jolie engaged; kids thrilled

"Yes, it's confirmed. It is a promise for the future and their kids are very happy," Pitt's manager Cynthia Pett-Dante tells USA TODAY. "There's no date set at this time. Brad designed the ring."

Beverly Hills jeweler Robert Procop confirms to USA TODAY that he helped Pitt design a stunning custom diamond ring for Jolie, with whom he has six children.

The couple was spotted Wednesday night at the Los Angeles County Museum of Art, where Jolie donned a massive diamond ring on her left ring finger.

"Brad had a specific vision for this ring, which he realized over a yearlong collaboration with Robert. He wanted every aspect of it to be perfect, so Robert was able to locate a diamond of the finest quality and cut it to an exact custom size and shape to suite Angelina's hand," Procop explains in a statement. "Brad was always heavily involved, overseeing every aspect of the creative design evolution. The side diamonds are speciality cut to encircle her finger. Each diamond is of the highest gem quality. "

Procop was not just some random choice for Pitt. The jeweler has worked with Jolie as well, designing jewelry to benefit the Education Partnership for Children in Conflict via their Style of Jolie collection.

During a visit to the Los Angeles County Museum of Art (LACMA) Chinese Collection on Wednesday, Angelina Jolie, with son Pax, showed off the new engagement ring she received from longtime partner Brad Pitt.